The Body at Work: A Treatise on the Principles of Physiology
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Alex Hill. The Body at Work: A Treatise on the Principles of Physiology
The Body at Work: A Treatise on the Principles of Physiology
Table of Contents
PREFACE
CHAPTER I. PROLEGOMENA
CHAPTER II. THE BASIS OF LIFE
CHAPTER III. THE UNIT OF STRUCTURE
CHAPTER IV. THE FLUIDS OF THE BODY
CHAPTER V. INTERNAL SECRETIONS
CHAPTER VI. DIGESTION
CHAPTER VII. RESPIRATION
CHAPTER VIII. EXCRETION
CHAPTER IX. THE CIRCULATION
CHAPTER X. MUSCLE
Electric Organs
Luminous Glands
CHAPTER XI. THE NERVOUS SYSTEM
CHAPTER XII. SMELL AND TASTE
CHAPTER XIII. VISION
CHAPTER XIV. HEARING
CHAPTER XV. SKIN-SENSATIONS
CHAPTER XVI. VOICE AND SPEECH
INDEX
Отрывок из книги
Alex Hill
Published by Good Press, 2021
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INDEX
The reactions which characterize animal protoplasm are of a different kind. They belong to the descending series. Close molecules are unfolded. Water is incorporated with them. Hydrogen and carbon are oxidized into water and carbonic acid. The conversion into sugar of glycogen or of starch may be taken as an illustration of expansion. Starch, (C₆H₁₀O₅)ₙ, becomes maltose, C₁₂H₂₂O₁₁, and then dextrose, C₆H₁₂O₆. The grouped molecule of starch opens out. The breaking of the double molecule of maltose into two molecules of dextrose is a further illustration of progress towards simplicity. Hydration, union with H₂O, accompanies this expansion. Hydrolysis is the secret of almost all digestive acts. Starch is hydrolysed into sugar, fat hydrolysed into glycerin and fatty acid, proteins hydrolysed into peptones.
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